Carex sect. Clandestinae G. Don in J. C. Loudon (Q140)
Carex sect. Clandestinae is a taxon with the rank section within the genus Carex
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English |
Carex sect. Clandestinae G. Don in J. C. Loudon
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Carex sect. Clandestinae is a taxon with the rank section within the genus Carex
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Statements
taxon/id/Carex sect. Clandestinae G. Don
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Carex sect. Clandestinae G. Don
Carex sect. Clandestinae
G. Don
FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
accepted
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Plants cespitose, short to long rhizomatous.
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Culms red-purple at the base, shorter or longer than leaves.
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Leaves: basal sheaths not fibrous;
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blades V-shaped in cross-section when young, glabrous, widest leaf-blades 2–4 mm wide, distal leaves bladeless or with blades 1 mm or less, not longer than sheaths.
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Inflorescences racemose, with 2–6 spikes;
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proximal nonbasal bracts bladeless or blade usually less than 2 mm, purple-tinged, sheathing;
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lateral spikes pistillate or androgynous, with not more than 25 perigynia, sometimes basal, pedunculate, prophyllate, ovoid;
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terminal spike staminate or androgynous.
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Proximal pistillate scales dark-brown to black, apex obtuse to subacute, cuspidate or awned.
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Perigynia erect or ascending, veinless or veined with 2 prominent marginal veins, stipitate, obovoid, rounded-trigonous, 2–3.5 mm, base tapering or cuneate, apex abruptly contracted to beak, pubescent, sometimes glabrescent;
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beak straight or bent, 0.2–0.5 mm, orifice entire or emarginate.
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Achenes trigonous, rarely quadrangular, almost as large as bodies of perigynia;
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